Dog Doorbells - Peyou Dog Doorbells Tinkle Bells for Housebreaking Housetraining, 1.4 Inch Dog Bell with Doggie Doorbell and Potty Training for Puppies and Communicate With Your Dog Super Durability. This potty training door bell is incredibly durable its made from heavy duty nylon material and extra loud bells. Potty doorbells are the loudest metal dog doorbells available on the market today and ring loud and clear every time. An Easier, Better Way for your dog to communicate!Instead of hearing barking & scratching, you hear the gentle jingle of Potty Bells! All dogs have to go potty and you can housebreak and teach them how to signal you when they have to gogo!! What's better than hearing the polite chime of our Potty Bells when your doggie needs to use the bathroom or needs to go out and inside? it is easy to use on any type of door handle. Small dogs, medium dogs, big dogs and large dogs all love with our dog bells Adjustable Size and suitable for any door:Our handle rivet is adjustable and can be tightened on any size of door knob or hook, to make sure your puppy won't take it off. and Its ergonomic design allows for easily adjusting the length (depending on the size of your dog).With premium quality dog doorbell comes with a snap, which will allow you to attach it to any door handle or knob Good quality and sturdy.This bell came with 6 bells (2 on the top 2 in the middle and 2 on the end). The are loud enough to hear anywhere in the house.Easy to install and the perfect height for any pooch. Peyou always offer best price,best quality,best service and fast delivery for you!